scholarly journals Biomechanical analysis of fibular graft techniques for nontraumatic osteonecrosis of the femoral head: a finite element analysis

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Jian Xu ◽  
Shi Zhan ◽  
Ming Ling ◽  
Dajun Jiang ◽  
Hai Hu ◽  
...  
2018 ◽  
Vol 23 (5) ◽  
pp. 825-833 ◽  
Author(s):  
Hidetatsu Tanaka ◽  
Go Yamako ◽  
Hiroaki Kurishima ◽  
Shutaro Yamashita ◽  
Yu Mori ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yi Mao ◽  
Xuzhuo Chen ◽  
Shiqi Yu ◽  
Weifeng Xu ◽  
Haiyi Qin ◽  
...  

Abstract This study is the first attempt to explore the reason of costochondral graft fracture after lengthy mandible advancement and bilateral coronoidectomy by combining finite element analysis and mechanical test. Eleven groups of models were established to simulate costochondral graft reconstruction in different degrees of mandible advancement, ranging from 0 to 20 mm, in 2 mm increment. Force and stress distribution in the rib-cartilage area were analyzed by finite element analysis. Mechanical test was used to evaluate the resistance of the rib-cartilage complex. Results showed a sharp increase in horizontal force between 8 and 10 mm mandible advancement, from 26.7 to 196.7 N in the left side, and continue increased after 10 mm, which was beyond bone-cartilage junction resistance according to mechanical test. Therefore, we concluded that bilateral reconstruction with coronoidectomy for lengthy mandible advancement (≥ 10 mm) may lead to prominent increase in shear force and result in a costal-cartilage junction fracture, in this situation, alloplastic prosthesis could be a better choice. We also suggested that coronoidectomy should be carefully considered unless necessary.


2017 ◽  
Vol 48 ◽  
pp. 49-56 ◽  
Author(s):  
Myriam Cilla ◽  
Sara Checa ◽  
Bernd Preininger ◽  
Tobias Winkler ◽  
Carsten Perka ◽  
...  

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